package org.principle.LiskovSubstitutionPrinciple.Father;

import java.util.Collection;
import java.util.Map;

/**
 * @author Mr.zyl
 */
public class Son extends Father {
	// 放大输入参数类型
	public Collection doSomething(Map map) {
		System.out.println("子类被执行...");
		return map.values();
	}

}
